1999-01-27_PERMIT FILE - M1999005

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' Official Series Description- *HAPA Series Pagel of 2 ' LOCATION APISHAPA CO+NM Established Series AJC/GB 02/97 APISHAPA SERIES The Apishapa series consists of deep, somewhat poorly drained and poorly drained, slowly permeable soils that formed in alluvial parent materials derived from mixed rock sources. Apishapa ' soils are on flood plains or in slightly depressed areas on terraces and have slopes of 0 to 4 percent. The mean annual precipitation is about 11 inches and the mean annual temperature is about 54 degrees F. ' TAXONOMIC CLASS: Fine, smectitic, calcareous, mesic Vertic Fluvaquents ' TYPICAL PEDON: Apishapa clay loam,rangeland. (Colors are for dry soil unless otherwise noted). A--O to 8 inches; light brownish gray(10YR 6/3)clay loam, dark grayish brown(1 OYR 4/2) moist; ' moderate fine subangular blocky structure parting to fine granular; slightly hard, friable, sticky and slightly plastic;cracks up to 1/2 inch wide;calcareous; moderately alkaline; clear smooth boundary. (6 to 10 inches thick) ' AC-8 to 14 inches; grayish brown(2.5Y 5/2)silty clay, dark grayish brown(2.5Y 4/2) moist; very weak coarse prismatic structure parting to weak medium angular blocky structure; extremely hard, very sticky and very plastic; cracks up to 1/2 inch wide; few slickensides on the faces of peds; calcareous; moderately alkaline; gradual smooth boundary. (3 to 16 inches thick) ' Ckzgl--14 to 50 inches; grayish brown(2.5Y 5/2)clay, dark grayish brown(2.5Y 4/2) moist; common medium prominent(2.5Y 5/6 and 2.5Y 4/1)mottles; massive; extremely hard, very sticky and very plastic; few cracks in upper part; visible secondary calcium carbonate and calcium sulfate ' occurring as concretions, crystals, and in thin seams and streaks; calcareous; strongly alkaline; gradual smooth boundary. (20 to 40 inches thick) ' Ckzg2-50 to 60 inches; olive gray(5Y 5/2)clay, olive gray(5Y 4/2) moist; massive; extremely hard, very plastic; secondary calcium carbonate and calcium sulfate,and probably other salts; calcareous; strongly alkaline. (Several feet thick) ' TYPE LOCATION: Prowers County, Colorado; approximately 360 feet south 2,315 feet east of the NW comer of sec. 29,T. 22 S.,R. 25 W. RANGE IN CHARACTERISTICS: There are many distinct and prominent mottles of bright and dull chroma usually within an 18 inch depth. The particle size control section is moderately alkaline ' or strongly alkaline. Calcium carbonate equivalent is usually 2 to 5 percent in most of the control section, but increases to 10 or 12 percent in some horizons. Calcium sulfate is usually about 2 percent in the lower part of the control section but ranges from 1 to 5 percent. The average annual soil temperature is 51 to 57 degrees F., the average summer soil temperature ranges from 66 to 76 degrees F. The control section is usually clay but ranges from 35 to 60 percent clay, 10 to 50 percent